WOW

What happens to all the unused marble chunks?

chess sets?

Actually…if you want to know historically, I can supply an answer.

During the Renaissance, if it was quality marble, it was ground up into a coarse dust that was used as a pigment, a textural additive for paintings and reliefs. Some pressed it into chalk and crayon-like pastels. It’s the main ingredient in gesso canvas preparatory gloss and both Marmorino and Venetian plaster. If a poorer quality marble, it was used a composite stone (grout, mortar, early concrete) or paving additive. Stucco treatments were even made with it. It even had some medicinal applications, due to the fact that it contain calcium carbonate and other minerals.

Now it can be used to make carbon dioxide for carbonated beverages.